Everyone has those moments when we question why we've done something stupid, but with any luck, a camera wasn't pointed your way at that very moment. For others who are unfortunate, their WTF moments were not only captured on tape but then posted to YouTube, leaving the rest of us to point and laugh. At least you can feel a little better about your life after seeing some of these moments.

From singing terribly to freaking out about something they're seeing, these people are terrific examples of what NOT to do when you're being filmed.